Hi,
i compiled the example Qtws, if you chnage in the manifest the sdk and the target sdk to someone new (example 26), when you open for the first time the view to scan the qr code appear (correct) the dialog to ask the permission but the camera is not working, you must exit to this view and reopen to have the camera ok. I think it’s important change the minim target to something more recent, so here need some fix.
Nicola